A Contra Costa County jury acquitted her of murder but convicted her of voluntary manslaughter, rejecting a claim of self-defense. Judge Barbara Zuniga imposed the minimum term of three years in prison and added three more years for use of a gun.

In a ruling released this week, a Court of Appeal panel in San Francisco said one juror had looked up the sentence for manslaughter on the Internet and told other jurors, while a second juror re-enacted some of the events at home to assess the evidence. But there was no indication that they influenced the jury, the court said.